Home / 2,134.28-2,946.68-1,379.43

Finding the Fourth Proportional to 2,134.28, 2,946.68 and 1,379.43

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Solution

The fourth proportional to 2,134.28, 2,946.68 and 1,379.43 is: 1,904.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,134.28 : 2,946.68 = 1,379.43 : x
  2. Step 2: Convert to fraction form
    2,134.28/2,946.68 = 1,379.43/x
  3. Step 3: Cross multiply
    2,134.28x = 2,946.68 × 1,379.43
  4. Step 4: Simplify right side
    2,134.28x = 4,064,737.07
  5. Step 5: Solve for x
    x = 4,064,737.07/2,134.28
  6. Step 6: Final answer
    x = 1,904.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.